Examples described herein involve validating motion of a microphone during calibration of a playback device. An example implementation involves a mobile device detecting, via one or more microphones, audio signals emitted from one or more playback devices as part of a calibration process. After the one or more playback devices emit the audio signals, the mobile device determines whether the detected audio signals indicate that sufficient horizontal translation of the mobile device occurred during the calibration process. When the detected audio signals indicate that insufficient horizontal translation occurred, the mobile device displays a prompt to move the mobile device more while the one or more playback devices emit one or more additional audio signals as part of the calibration process. When the detected audio signals indicate that sufficient horizontal translation occurred, the mobile device calibrates the one or more playback devices with a calibration based on the detected audio signals.

Transducer steering and configuration systems and methods using a local positioning system are provided. The position and/or orientation of transducers, devices, and/or objects within a physical environment may be utilized to enable steering of lobes and nulls of the transducers, to create self-assembling arrays of the transducers, and to enable monitoring and configuration of the transducers, devices, and objects through an augmented reality interface. The transducers and devices may be more optimally configured which can result in better capture of sound, better reproduction of sound, improved system performance, and increased user satisfaction.

Systems and methods for distinguishing valid voice commands from false voice commands in an interactive media guidance application. In some aspects, the interactive media guidance application receives, at a user device, a signature sound sequence. The interactive media guidance application determines, using control circuitry, based on the signature sound sequence, a threshold gain for the current location of the user device. The interactive media guidance application receives, at the user device, a voice command. The interactive media guidance application determines, using the control circuitry, based on the voice command, a gain for the voice command. The interactive media guidance application determines, using the control circuitry, whether the gain for the voice command is different from the threshold gain. Based on determining that the gain for the voice command is different from the threshold gain, the interactive media guidance application executes, using the control circuitry, the voice command.

An embodiment of the disclosure relates to a method of detecting the location of a user located in a vehicle, the method including performing pairing between a mobile device of the user and the vehicle, outputting a plurality of sound wave signals respectively from a plurality of speakers located in the vehicle, the plurality of sound wave signal being different from each other in at least one of a frequency band and a time period, and obtaining user location information which is information about a user location detected based on an audio signal received by the mobile device in correspondence to the plurality of sound wave signals.

An electronic device, computer program product, and method manage presenting and pausing of media content in response to locally detected visual and aural interruptions. The electronic device is configured to determine, using one or more sensors from among: (i) an image capturing device positioned to have a field of view of a monitored area and (ii) a microphone positioned to detect sounds in or near the monitored area. A consumer is in the monitored area during presenting of media content by a media output device. The electronic device is configured to monitor the one or more sensors to determine whether an interruption is occurring that can degrade consumer experience relative to the presenting of the media content. In response to determining that the interruption is occurring, the electronic device is configured to pause the presenting of the media content on the media output device.

An ultrasonic transducer includes a transducer case and an ultrasonic element. The transducer case is formed into a bottomed, cylindrical shape having a side plate portion and a bottom plate portion that seals one end side of the side plate portion in an axial direction to configure a diaphragm. The ultrasonic element is fixedly supported to the bottom plate portion to face an interior space surrounded by the side plate portion and the bottom plate portion. The ultrasonic element is arranged in a position being offset in an in-plane direction orthogonal to the axial direction relative to a center position of the diaphragm in the in-plane direction to be capable of generating a first transmission wave having first directivity characteristics and a second transmission wave having second directivity characteristics that are directivity characteristics differing from the first directivity characteristics and in which sound pressure in the axial direction is decreased.

An ultrasonic speaker comprises a case that has an opened top surface and includes a plurality of protrusions protruding inward on an inner side surface of the case, a piezoelectric element fixed to a bottom surface in the case, and a substrate that is inserted in the case and placed on upper surfaces of the plurality of protrusions.

The invention relates to a variable-directivity MEMS microphone. The microphone comprises an acoustic cavity. The following components are provided inside the acoustic cavity: a first acoustic transducer for detecting an acoustic signal and converting the acoustic signal into a first acoustic conversion signal; a first pre-amplifier, connected to the first acoustic transducer, and configured for outputting a first electric signal; a second acoustic transducer for detecting an acoustic signal and converting the acoustic signal into a second acoustic conversion signal; a second pre-amplifier, connected to the second acoustic transducer, and configured for outputting a second electric signal; and a signal processing chip, connected to the first pre-amplifier and the second pre-amplifier, and configured for generating a directional output signal by performing an arithmetic operation on the first electric signal and the second electric signal under the action of a switching control signal.

Provided is a microphone, including a base having a back cavity, a diaphragm, a backplate electrode, and a backplate spaced from the diaphragm and defining an inner cavity jointly with the diaphragm. The diaphragm includes a vibration portion, a fixing portion, and a leak hole. The back cavity is communicated with the inner cavity through the leak hole. The backplate is provided with a first through hole. The inner cavity is communicated with outside through the first through hole. The backplate includes a backplate body and a backplate extension portion. The inner cavity includes a first inner cavity and a second inner cavity. The backplate extension portion is provided with a second through hole, and the second inner cavity is communicated with outside through the second through hole. A method for manufacturing the microphone is further provided. The technical solution has better drop performance.

An electronic device is provided. The electronic device includes a plurality of audio output devices and at least one processor operatively connected to the plurality of audio output devices, wherein the at least one processor may be configured to identify orientation information of the electronic device, based on detecting an output of audio data, transmit, to each audio output device, channel information of audio data to be output by each of the plurality of audio output devices, based on the orientation information of the electronic device, and control the plurality of audio output devices so that each audio output device selects a channel and outputs audio data of the selected channel, based on the channel information.